1st variation "dark blue enamel" manufactured in pure silver.
Obverse
貮等有功章 - 2nd class Merit Badge
日本海員掖済會 - Japan Seafarers Relief Association
Such badges have three marks.
"Japanese flag"+ "純銀 - pure silver" + "1000 inside a rhombus".
Reverse
Anchor.
Original case...
imperial seamen relief association badge
japan seafarers relief association
japan seafarers relief association award
japan seafarers relief association badge
japanese badge with anchor
japanese badge with steering wheel
japanese navy badge
merit badge of japan seafarers relief association
日本海員掖済会二等有功章
日本海員掖済会章
日本海員掖済會貮等有功章
日本海員掖濟會之章
日本海員救援会弐等有功章